/**
* Executes example.
*
* @param args Command line arguments, none required.
*/
public static void main(String[] args) {
// Typedefs:
// ---------
// G -> GridFactory
// CI1 -> GridInClosure
// CO -> GridOutClosure
// CA -> GridAbsClosure
// F -> GridFunc
// Data initialisation.
Random rand = new Random();
final int size = 20;
Collection<Integer> nums = new ArrayList<Integer>(size);
// Generate list of random integers.
for (int i = 0; i < size; i++) {
nums.add(rand.nextInt(size));
}
// Print generated list.
X.println("Generated list:");
F.forEach(nums, F.<Integer>print("", " "));
// Get new unmodifiable collection with elements which value low than half generated list size.
Collection<Integer> view =
F.view(
nums,
new P1<Integer>() {
@Override
public boolean apply(Integer i) {
return i < size / 2;
}
});
// Print result.
X.println("\nResult list:");
F.forEach(view, F.<Integer>print("", " "));
// Check for read only.
try {
view.add(12);
} catch (Exception ignored) {
X.println("\nView is read only.");
}
}
/** {@inheritDoc} */
@Override
public void explicitUndeploy(UUID nodeId, String rsrcName) {
Collection<SharedDeployment> undeployed = new LinkedList<SharedDeployment>();
synchronized (mux) {
for (Iterator<List<SharedDeployment>> i1 = cache.values().iterator(); i1.hasNext(); ) {
List<SharedDeployment> deps = i1.next();
for (Iterator<SharedDeployment> i2 = deps.iterator(); i2.hasNext(); ) {
SharedDeployment dep = i2.next();
if (dep.hasName(rsrcName)) {
if (!dep.isUndeployed()) {
dep.undeploy();
dep.onRemoved();
// Undeploy.
i2.remove();
undeployed.add(dep);
if (log.isInfoEnabled()) log.info("Undeployed per-version class loader: " + dep);
}
break;
}
}
if (deps.isEmpty()) i1.remove();
}
}
recordUndeployed(null, undeployed);
}
/**
* The added suite will be always executed locally, but in parallel with other locally or remotely
* running tests. This comes handy for tests that cannot be distributed for some environmental
* reasons, but still would benefit from parallel execution.
*
* <p>Note, that local suites will be executed on local node even if grid topology only allows
* remote nodes.
*
* @param localSuite Test to execute locally in parallel with other local or distributed tests.
*/
@SuppressWarnings({"TypeMayBeWeakened"})
public void addTest(GridJunit3LocalTestSuite localSuite) {
if (!locTests.contains(localSuite.getName())) {
locTests.add(localSuite.getName());
}
addTest((Test) localSuite);
}
/** {@inheritDoc} */
@Override
public Collection<UUID> nodeIds() {
Collection<UUID> ids = new GridLeanSet<UUID>();
ids.add(cctx.nodeId());
ids.addAll(mappings.keySet());
return ids;
}
/** {@inheritDoc} */
@Override
public Collection<GridDeployment> getDeployments() {
Collection<GridDeployment> deps = new LinkedList<GridDeployment>();
synchronized (mux) {
for (List<SharedDeployment> list : cache.values())
for (SharedDeployment d : list) deps.add(d);
}
return deps;
}
/**
* Executes example.
*
* @param args Command line arguments, none required.
*/
public static void main(String[] args) {
// Typedefs:
// ---------
// G -> GridFactory
// CI1 -> GridInClosure
// CO -> GridOutClosure
// CA -> GridAbsClosure
// F -> GridFunc
// Data initialisation.
Random rand = new Random();
final int size = 20;
Collection<Integer> nums = new ArrayList<Integer>(size);
// Generate list of random integers.
for (int i = 0; i < size; i++) {
nums.add(rand.nextInt(size));
}
// Print generated list.
X.println("Generated list:");
F.forEach(nums, F.<Integer>print("", " "));
// Retain all elements which value low than half generated list size.
Collection<Integer> res =
F.retain(
nums,
true,
new P1<Integer>() {
@Override
public boolean apply(Integer i) {
return i < size / 2;
}
});
// Print result.
X.println("\nResult list:");
F.forEach(res, F.<Integer>print("", " "));
// Retain first half of result list.
F.retain(res, false, res.size() / 2);
// Print result.
X.println("\nResult list:");
F.forEach(res, F.<Integer>print("", " "));
}
/** {@inheritDoc} */
@Override
public Collection<GridDeployment> getDeployments() {
Collection<GridDeployment> deps = new ArrayList<GridDeployment>();
synchronized (mux) {
for (List<GridDeployment> depList : cache.values()) {
for (GridDeployment d : depList) {
if (!deps.contains(d)) {
deps.add(d);
}
}
}
return deps;
}
}
/** {@inheritDoc} */
@Override
public Map<GridRichNode, Collection<K>> mapKeysToNodes(Collection<? extends K> keys) {
Map<GridRichNode, Collection<K>> map = new HashMap<GridRichNode, Collection<K>>();
for (K key : keys) {
Collection<GridRichNode> nodes = ctx.allNodes(key);
for (GridRichNode node : nodes) {
Collection<K> keyCol = map.get(node);
if (keyCol == null) map.put(node, keyCol = new LinkedList<K>());
keyCol.add(key);
}
}
return map;
}
/** {@inheritDoc} */
@Override
public void stop() {
Collection<SharedDeployment> copy = new HashSet<SharedDeployment>();
synchronized (mux) {
for (List<SharedDeployment> deps : cache.values())
for (SharedDeployment dep : deps) {
// Mark undeployed.
dep.undeploy();
copy.add(dep);
}
cache.clear();
}
for (SharedDeployment dep : copy) dep.recordUndeployed(null);
if (log.isDebugEnabled()) log.debug(stopInfo());
}
/**
* Adds a test to be executed on the grid. In case of test suite, all tests inside of test suite
* will be executed sequentially on some remote node.
*
* @param test Test to add.
*/
@Override
public void addTest(Test test) {
if (copy == null) {
copy = new TestSuite(getName());
}
// Add test to the list of local ones.
if (test instanceof GridJunit3LocalTestSuite) {
String testName = ((TestSuite) test).getName();
if (!locTests.contains(testName)) {
locTests.add(testName);
}
}
if (test instanceof GridJunit3TestSuite) {
copy.addTest(((GridJunit3TestSuite) test).copy);
super.addTest(new GridJunit3TestSuiteProxy(((GridJunit3TestSuite) test).copy, factory));
} else if (test instanceof GridJunit3TestSuiteProxy) {
copy.addTest(((GridJunit3TestSuiteProxy) test).getOriginal());
super.addTest(test);
} else if (test instanceof GridJunit3TestCaseProxy) {
copy.addTest(((GridJunit3TestCaseProxy) test).getGridGainJunit3OriginalTestCase());
super.addTest(test);
} else if (test instanceof TestSuite) {
copy.addTest(test);
super.addTest(new GridJunit3TestSuiteProxy((TestSuite) test, factory));
} else {
assert test instanceof TestCase
: "Test must be either instance of TestSuite or TestCase: " + test;
copy.addTest(test);
super.addTest(factory.createProxy((TestCase) test));
}
}
/**
* @param ldr Class loader to undeploy.
* @param recEvt Whether or not to record the event.
*/
private void undeploy(ClassLoader ldr, boolean recEvt) {
Collection<GridDeployment> doomed = new HashSet<GridDeployment>();
synchronized (mux) {
for (Iterator<LinkedList<GridDeployment>> i1 = cache.values().iterator(); i1.hasNext(); ) {
LinkedList<GridDeployment> deps = i1.next();
for (Iterator<GridDeployment> i2 = deps.iterator(); i2.hasNext(); ) {
GridDeployment dep = i2.next();
if (dep.classLoader() == ldr) {
dep.undeploy();
i2.remove();
doomed.add(dep);
if (log.isInfoEnabled()) {
log.info("Removed undeployed class: " + dep);
}
}
}
if (deps.isEmpty()) {
i1.remove();
}
}
}
for (GridDeployment dep : doomed) {
if (dep.isObsolete()) {
// Resource cleanup.
ctx.resource().onUndeployed(dep);
}
if (recEvt) {
recordUndeploy(dep, true);
}
}
}
/** {@inheritDoc} */
@Override
public void unlockAll(
Collection<? extends K> keys, GridPredicate<? super GridCacheEntry<K, V>>[] filter) {
if (keys.isEmpty()) return;
try {
GridCacheVersion ver = null;
Collection<GridRichNode> affNodes = null;
int keyCnt = -1;
Map<GridRichNode, GridNearUnlockRequest<K, V>> map = null;
Collection<K> locKeys = new LinkedList<K>();
GridCacheVersion obsoleteVer = ctx.versions().next();
for (K key : keys) {
while (true) {
GridDistributedCacheEntry<K, V> entry = peekExx(key);
if (entry == null || !ctx.isAll(entry.wrap(false), filter)) break; // While.
try {
GridCacheMvccCandidate<K> cand =
entry.candidate(ctx.nodeId(), Thread.currentThread().getId());
if (cand != null) {
ver = cand.version();
if (affNodes == null) {
affNodes = CU.allNodes(ctx, cand.topologyVersion());
keyCnt = (int) Math.ceil((double) keys.size() / affNodes.size());
map = new HashMap<GridRichNode, GridNearUnlockRequest<K, V>>(affNodes.size());
}
// Send request to remove from remote nodes.
GridRichNode primary = CU.primary0(ctx.affinity(key, affNodes));
GridNearUnlockRequest<K, V> req = map.get(primary);
if (req == null) {
map.put(primary, req = new GridNearUnlockRequest<K, V>(keyCnt));
req.version(ver);
}
// Remove candidate from local node first.
GridCacheMvccCandidate<K> rmv = entry.removeLock();
if (rmv != null) {
if (!rmv.reentry()) {
if (ver != null && !ver.equals(rmv.version()))
throw new GridException(
"Failed to unlock (if keys were locked separately, "
+ "then they need to be unlocked separately): "
+ keys);
if (!primary.isLocal()) {
assert req != null;
req.addKey(entry.key(), entry.getOrMarshalKeyBytes(), ctx);
} else locKeys.add(key);
if (log.isDebugEnabled()) log.debug("Removed lock (will distribute): " + rmv);
} else if (log.isDebugEnabled())
log.debug(
"Current thread still owns lock (or there are no other nodes)"
+ " [lock="
+ rmv
+ ", curThreadId="
+ Thread.currentThread().getId()
+ ']');
}
// Try to evict near entry if it's dht-mapped locally.
evictNearEntry(entry, obsoleteVer);
}
break;
} catch (GridCacheEntryRemovedException ignore) {
if (log.isDebugEnabled())
log.debug("Attempted to unlock removed entry (will retry): " + entry);
}
}
}
if (ver == null) return;
for (Map.Entry<GridRichNode, GridNearUnlockRequest<K, V>> mapping : map.entrySet()) {
GridRichNode n = mapping.getKey();
GridDistributedUnlockRequest<K, V> req = mapping.getValue();
if (n.isLocal()) dht.removeLocks(ctx.nodeId(), req.version(), locKeys, true);
else if (!req.keyBytes().isEmpty())
// We don't wait for reply to this message.
ctx.io().send(n, req);
}
} catch (GridException ex) {
U.error(log, "Failed to unlock the lock for keys: " + keys, ex);
}
}
/**
* See <a href="http://e-docs.bea.com/wls/docs100/javadocs/weblogic/common/T3StartupDef.html">
* http://e-docs.bea.com/wls/docs100/javadocs/weblogic/common/T3StartupDef.html</a> for more
* information.
*
* @param str Virtual name by which the class is registered as a {@code startupClass} in the
* {@code config.xml} file
* @param params A hashtable that is made up of the name-value pairs supplied from the {@code
* startupArgs} property
* @return Result string (log message).
* @throws Exception Thrown if error occurred.
*/
@SuppressWarnings({"unchecked", "CatchGenericClass"})
@Override
public String startup(String str, Hashtable params) throws Exception {
GridLogger log = new GridJavaLogger(LoggingHelper.getServerLogger());
cfgFile = (String) params.get(cfgFilePathParam);
if (cfgFile == null) {
throw new IllegalArgumentException("Failed to read property: " + cfgFilePathParam);
}
String workMgrName = (String) params.get(workMgrParam);
URL cfgUrl = U.resolveGridGainUrl(cfgFile);
if (cfgUrl == null)
throw new ServerLifecycleException(
"Failed to find Spring configuration file (path provided should be "
+ "either absolute, relative to GRIDGAIN_HOME, or relative to META-INF folder): "
+ cfgFile);
GenericApplicationContext springCtx;
try {
springCtx = new GenericApplicationContext();
XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(springCtx);
xmlReader.loadBeanDefinitions(new UrlResource(cfgUrl));
springCtx.refresh();
} catch (BeansException e) {
throw new ServerLifecycleException(
"Failed to instantiate Spring XML application context: " + e.getMessage(), e);
}
Map cfgMap;
try {
// Note: Spring is not generics-friendly.
cfgMap = springCtx.getBeansOfType(GridConfiguration.class);
} catch (BeansException e) {
throw new ServerLifecycleException(
"Failed to instantiate bean [type="
+ GridConfiguration.class
+ ", err="
+ e.getMessage()
+ ']',
e);
}
if (cfgMap == null)
throw new ServerLifecycleException(
"Failed to find a single grid factory configuration in: " + cfgUrl);
if (cfgMap.isEmpty())
throw new ServerLifecycleException("Can't find grid factory configuration in: " + cfgUrl);
try {
ExecutorService execSvc = null;
MBeanServer mbeanSrv = null;
for (GridConfiguration cfg : (Collection<GridConfiguration>) cfgMap.values()) {
assert cfg != null;
GridConfigurationAdapter adapter = new GridConfigurationAdapter(cfg);
// Set logger.
if (cfg.getGridLogger() == null) adapter.setGridLogger(log);
if (cfg.getExecutorService() == null) {
if (execSvc == null)
execSvc =
workMgrName != null
? new GridThreadWorkManagerExecutor(workMgrName)
: new GridThreadWorkManagerExecutor(J2EEWorkManager.getDefault());
adapter.setExecutorService(execSvc);
}
if (cfg.getMBeanServer() == null) {
if (mbeanSrv == null) {
InitialContext ctx = null;
try {
ctx = new InitialContext();
mbeanSrv = (MBeanServer) ctx.lookup("java:comp/jmx/runtime");
} catch (Exception e) {
throw new IllegalArgumentException(
"MBean server was not provided and failed to obtain " + "Weblogic MBean server.",
e);
} finally {
if (ctx != null) ctx.close();
}
}
adapter.setMBeanServer(mbeanSrv);
}
Grid grid = G.start(adapter, springCtx);
// Test if grid is not null - started properly.
if (grid != null) gridNames.add(grid.name());
}
return getClass().getSimpleName() + " started successfully.";
} catch (GridException e) {
// Stop started grids only.
for (String name : gridNames) G.stop(name, true);
throw new ServerLifecycleException("Failed to start GridGain.", e);
}
}
/** {@inheritDoc} */
@Override
public void onKernalStart() throws GridException {
discoLsnr =
new GridLocalEventListener() {
@Override
public void onEvent(GridEvent evt) {
assert evt instanceof GridDiscoveryEvent;
assert evt.type() == EVT_NODE_LEFT || evt.type() == EVT_NODE_FAILED;
GridDiscoveryEvent discoEvt = (GridDiscoveryEvent) evt;
Collection<SharedDeployment> undeployed = new LinkedList<SharedDeployment>();
if (log.isDebugEnabled()) log.debug("Processing node departure event: " + evt);
synchronized (mux) {
for (Iterator<List<SharedDeployment>> i1 = cache.values().iterator();
i1.hasNext(); ) {
List<SharedDeployment> deps = i1.next();
for (Iterator<SharedDeployment> i2 = deps.iterator(); i2.hasNext(); ) {
SharedDeployment dep = i2.next();
dep.removeParticipant(discoEvt.eventNodeId());
if (!dep.hasParticipants()) {
if (dep.deployMode() == SHARED) {
if (!dep.isUndeployed()) {
dep.undeploy();
// Undeploy.
i2.remove();
assert !dep.isRemoved();
dep.onRemoved();
undeployed.add(dep);
if (log.isDebugEnabled())
log.debug(
"Undeployed class loader as there are no participating "
+ "nodes: "
+ dep);
}
} else if (log.isDebugEnabled())
log.debug("Preserving deployment without node participants: " + dep);
} else if (log.isDebugEnabled())
log.debug("Keeping deployment as it still has participants: " + dep);
}
if (deps.isEmpty()) i1.remove();
}
}
recordUndeployed(discoEvt.eventNodeId(), undeployed);
}
};
ctx.event().addLocalEventListener(discoLsnr, EVT_NODE_FAILED, EVT_NODE_LEFT);
Collection<SharedDeployment> undeployed = new LinkedList<SharedDeployment>();
synchronized (mux) {
for (Iterator<List<SharedDeployment>> i1 = cache.values().iterator(); i1.hasNext(); ) {
List<SharedDeployment> deps = i1.next();
for (Iterator<SharedDeployment> i2 = deps.iterator(); i2.hasNext(); ) {
SharedDeployment dep = i2.next();
for (UUID nodeId : dep.getParticipantNodeIds())
if (ctx.discovery().node(nodeId) == null) dep.removeParticipant(nodeId);
if (!dep.hasParticipants()) {
if (dep.deployMode() == SHARED) {
if (!dep.isUndeployed()) {
dep.undeploy();
// Undeploy.
i2.remove();
dep.onRemoved();
undeployed.add(dep);
if (log.isDebugEnabled())
log.debug("Undeployed class loader as there are no participating nodes: " + dep);
}
} else if (log.isDebugEnabled())
log.debug("Preserving deployment without node participants: " + dep);
} else if (log.isDebugEnabled())
log.debug("Keeping deployment as it still has participants: " + dep);
}
if (deps.isEmpty()) i1.remove();
}
}
recordUndeployed(null, undeployed);
if (log.isDebugEnabled()) log.debug("Registered deployment discovery listener: " + discoLsnr);
}